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News for citrus growers around the globe
The U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) expects total citrus production in Morocco to reach an estimated 2.55 million metric tons (MMT) in 2021-22. That’s an increase of 12% over 2020-21. Tangerine/mandarin production should increase by 13% over the previous year to 1.36 MMT. Domestic consumption is expected to be 860,000 metric tons (MT), an increase of 16%. …
In an open letter to California citrus growers, Jim Gorden, chair of the Citrus Pest & Disease Prevention Committee, emphasized the importance of cooperation of all growers to keep huanglongbing (HLB) at bay. Growers need to work together to coordinate treatments for maximum effectiveness. “As the threat of HLB continues, industry members know that the best way to prevent HLB …
The U.S. Department of Agriculture (USDA) National Agricultural Statistics Service released its monthly U.S. citrus production forecast on Jan. 12. ORANGESThe report showed another 3% drop in Florida orange production down to 44.5 million boxes. The initial forecast in October predicted 47 million boxes. The forecast for all oranges fell by 1.5 million boxes from the December report. Florida’s non-Valencia …
The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) has proposed that fresh pummelo fruit can be safely imported from Vietnam into the United States. The proposal is part of a pest risk assessment and risk management document that APHIS prepared. Vietnam’s Deputy Minister of Agriculture and Rural Development Tran Thanh Nam said in early January that U.S. …
Florida citrus growers and orange juice processors are reporting low Brix levels as the 2021–2022 harvest season continues. The Jan. 10 edition of the Market News Bulletin from Florida Citrus Mutual noted average Brix of 9.83. According to Bob Behr, chief executive officer of Florida’s Natural Growers, juice oranges being harvested now are running below average. “Citrus greening continues to …
The Southeast Regional Fruit and Vegetable Conference held in Savannah in early January included a session on citrus production to educate growers. Kelly Morgan, professor of soil fertility and water management with the University of Florida, spoke to attendees about newly updated production guides and their relationship to plant nutrition and HLB. Morgan noted that the third edition of the …
By Ramdas Kanissery Paraquat is an herbicide labeled for various crops, including citrus, for post-emergent weed control. When applied during the early growth stage, paraquat controls many annual grasses and broadleaf weeds commonly found in Florida citrus. Additionally, paraquat typically offers relatively good crop safety in citrus due to its lack of translocation in the plant. This makes it the …
The U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) recently reported on the citrus industry in Brazil, including updates on orange production, yield, area planted and tree inventory. The orange crop for Brazil’s marketing year 2022-23 is forecast at 405 million 40.8-kg boxes (MBx), equal to 16.52 million metric tons, an increase of 12% relative to the current season. The …
European Union (EU) orange production is forecast at 6.1 million metric tons (MMT) for 2021–22 by the U.S. Department of Agriculture’s Foreign Agricultural Service. That’s 6% lower than the previous season and 3.3% lower than the EU’s 10-year average of 6.3 MMT. PRODUCTIONSpain and Italy represent 80% of the EU’s total production of oranges. The remaining 20% is distributed among …
By Lauren Diepenbrock Managing lebbeck mealybug has become an ongoing challenge in many citrus-growing areas of Florida. This pest expanded into 14 counties from 2019 to fall of 2021 and impacts both commercial and residential citrus. Damage includes distorted fruit and leaves, stem dieback and fruit drop. Loss of young trees can occur under extreme infestation scenarios. In addition to …
As they battle HLB, growers must control costs wherever possible, including by applying pesticides and fertilizer more efficiently. With that in mind, Yiannis Ampatzidis is engaging artificial intelligence (AI) to develop a low-cost, smart tree-crop sprayer that can automatically detect citrus trees, calculate their height and leaf density, and count fruit. That way, growers target their spray more efficiently, so …
A $1.5 million emergency grant is enabling scientists in citrus-producing states to find trees tolerant to the devastating citrus disease HLB. The disease has crippled Florida’s citrus industry and has already been detected in California, which grows 80% of America’s fresh citrus. The National Institute of Food and Agriculture is supporting scientists at the University of California, Riverside (UCR); the University …
By Frank Giles Mike Aerts, Florida Fruit & Vegetable Association’s vice president of science and regulatory affairs, recently shared an update from the European Union (EU) that could impact maximum residue limits (MRLs) allowed in the 27-member-country body. MRLs govern the amount of allowable pesticide residue on a food product in order to enter a country. Because the EU has …
By Michael Rogers January marks the season for resolutions: exercising more, eating well and being more organized. But in the research world, resolutions may not be that simple. I don’t think that University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers could be any more “resolved” in finding ways to fight citrus diseases and ways to improve how …
Egypt is expected to maintain its position as the world’s leading fresh orange exporter in 2021–22 despite production challenges, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reported. The country is expected to export 1.45 million metric tons (MMT), down from 1.67 MMT in 2020–21. The decrease in exports is attributed to lower production amid unfavorable climate conditions. Russia, …
By Tripti Vashisth In a multi-year field trial, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have seen beneficial effects of gibberellic acid (GA) on Valencia sweet oranges. Monthly application of GA (September to January) on Valencia improved yield on average by 30%, reduced fruit drop and elicited enhanced plant defense response. These benefits are possibly due …
Citrus production in Australia is experiencing favorable conditions after above-average rainfall in all of the major growing areas in 2020 and 2021, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) recently reported. As a result, production in the country is projected to increase in 2021-22. Orange production is forecast at 535,000 metric tons (MT) in 2021-22, a 2% increase …
By Frank Giles The U.S. Department of Agriculture (USDA) reported a drop in estimated Florida orange production in its December crop update. That estimate lowered production by 1 million boxes from the initial forecast of 47 million boxes reported in October. In advance of USDA’s January estimate, Florida citrus growers discussed how their crops are progressing. Here’s what they had …
For the first time, scientists have been able to measure the speed of the Candidatus Liberibacter asiaticus (CLas) bacteria that causes HLB disease. CLas are injected into citrus trees by psyllids feeding on the trees’ sap. CLas relies on this sap to grow and spread throughout trees. Using a new statistical modeling analysis and measurement approach, plant pathologists were …
By Amir Rezazadeh Low temperatures can cause serious injury to leaf, wood and fruits of citrus trees. An extended freeze can kill a citrus tree. A rapid temperature decrease or a longer duration of freezing temperature can worsen the damage. Because preparation is paramount in protecting citrus trees, growers should use the Florida Automated Weather Network. The network provides information …
